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Finding the Fourth Proportional to 279,322.60, 418,811.10 and 160,935.40

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Solution

The fourth proportional to 279,322.60, 418,811.10 and 160,935.40 is: 241,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,322.60 : 418,811.10 = 160,935.40 : x
  2. Step 2: Convert to fraction form
    279,322.60/418,811.10 = 160,935.40/x
  3. Step 3: Cross multiply
    279,322.60x = 418,811.10 × 160,935.40
  4. Step 4: Simplify right side
    279,322.60x = 67,401,531,902.94
  5. Step 5: Solve for x
    x = 67,401,531,902.94/279,322.60
  6. Step 6: Final answer
    x = 241,303.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.